Caffeine anhydrous is a water-soluble methylxanthine used in topical skincare for its antioxidant properties and ability to temporarily constrict blood vessels, often included in eye and anti-cellulite formulations to reduce the appearance of puffiness and improve skin tone. It may also offer some protection against UV-induced oxidative damage.
| Reported effect | How often | Notes |
|---|---|---|
Mild skin irritation or redness | Uncommon | Typically transient and concentration-dependent, more likely on sensitive or compromised skin. |
Contact dermatitis | Rare | Allergic reactions to topical caffeine are infrequently reported. |
Dryness or tightness | Rare | Possible with high concentrations or frequent application. |
Stinging around the eye area | Uncommon | Can occur if product migrates into the eyes. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.